forked from Imagelibrary/rtems
8fbe2e69b5
This change starts with removing the effectively empty file timerdrv.h. The prototypes for benchmark_timer_XXX() were in btimer.h which was not universally used. Thus every use of timerdrv.h had to be changed to btimer.h. Then the prototypes for benchmark_timer_read() had to be adjusted to return benchmark_timer_t rather than int or uint32_t. I took this opportunity to also correct the file headers to separate the copyright from the file description comments which is needed to ensure the copyright isn't propagated into Doxygen output.
47 lines
1.2 KiB
ArmAsm
47 lines
1.2 KiB
ArmAsm
/**
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* @file
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* @brief Handle MCF5272 TIMER2 interrupts.
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*
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* All code in this routine is pure overhead which can perturb the
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* accuracy of RTEMS' timing test suite.
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*
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* See also: benchmark_timer_read()
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*
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* To reduce overhead this is best to be the "rawest" hardware interupt
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* handler you can write. This should be the only interrupt which can
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* occur during the measured time period.
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*
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* An external counter, Timer_interrupts, is incremented.
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*/
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/*
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* Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
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* Author: Victor V. Vengerov <vvv@oktet.ru>
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*
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* This file based on work:
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* Author:
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* David Fiddes, D.J@fiddes.surfaid.org
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* http://www.calm.hw.ac.uk/davidf/coldfire/
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*
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* COPYRIGHT (c) 1989-1998.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <rtems/asm.h>
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#include <bsp.h>
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BEGIN_CODE
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PUBLIC(timerisr)
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SYM(timerisr):
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move.l a0, a7@-
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move.b # (MCF5272_TER_REF + MCF5272_TER_CAP), (a0)
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addq.l #1,SYM(Timer_interrupts) | increment timer value
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move.l a7@+, a0
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rte
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END_CODE
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END
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